Caspex Software Engineer Interview Questions + Guide in 2025

Caspex is a forward-thinking technology company dedicated to developing innovative software solutions that enhance efficiency and performance for various industries.

The role of a Software Engineer at Caspex involves designing, developing, and maintaining software applications, with a strong emphasis on coding proficiency and problem-solving skills. Engineers are expected to collaborate with cross-functional teams to translate business requirements into technical solutions while ensuring high-quality code and adherence to best practices. Key responsibilities include coding in languages such as Java and Kotlin, handling asynchronous programming, implementing user interfaces, and managing data through effective use of ViewModels and coroutines.

Candidates will thrive in this role if they possess a strong foundation in algorithms and data structures, along with a proactive approach to tackling complex technical challenges. A great fit for Caspex embodies a blend of technical expertise, creativity in problem-solving, and an enthusiasm for continuous learning, aligning with the company's values of innovation and excellence in technology.

This guide will help you prepare for your interview by providing insights into the skills and competencies valued at Caspex, as well as the types of questions you may encounter.

The interview process for a Software Engineer at Caspex is structured to assess both technical skills and cultural fit. It typically consists of three main rounds, each designed to evaluate different aspects of your capabilities.

1. Initial Screening

The first step in the interview process is an initial screening, which usually takes place via a video call. During this 30-minute conversation, a recruiter will ask basic questions about your background, experience, and motivation for applying to Caspex. This is also an opportunity for you to learn more about the company culture and the specifics of the role.

2. Online Assessment

Following the initial screening, candidates are required to complete an online coding assessment through a platform like Glider.ai. This assessment includes a coding test that evaluates your problem-solving skills and programming knowledge. You may encounter multiple-choice questions as well as coding challenges that require you to implement algorithms and data structures. The assessment is monitored to ensure integrity, so be prepared to demonstrate your coding skills without external assistance. Expect questions that may involve manipulating data structures, handling asynchronous operations, and implementing common algorithms.

3. Technical Interview

The final round consists of a technical interview, typically conducted via video call. This interview lasts about an hour and focuses on scenario-based questions that assess your practical knowledge and application of software engineering principles. You may be asked to discuss how to manage communication between services, handle asynchronous tasks, and implement UI components effectively. Additionally, you should be ready to tackle coding problems that require you to think critically and apply your knowledge of programming languages, particularly Java, and frameworks relevant to the role.

Throughout the process, candidates may also have a final discussion with a manager, which may include non-technical questions aimed at understanding your fit within the team and company culture.

As you prepare for your interview, consider the types of questions that may arise in each of these rounds.

Here are some tips to help you excel in your interview.

Familiarize Yourself with the Interview Process

Understanding the structure of the interview process at Caspex can give you a significant advantage. Expect a coding test as the first round, which will include both programming tasks and multiple-choice questions. Prepare for this by practicing coding problems on platforms like LeetCode or HackerRank, focusing on common algorithms and data structures. The second round will be a technical interview that emphasizes scenario-based questions rather than theoretical knowledge. Familiarize yourself with common software engineering scenarios, particularly those related to service communication, asynchronous programming, and UI handling.

Master Key Technical Concepts

Given the nature of the role, it's crucial to have a solid grasp of core programming concepts, especially in languages relevant to the position, such as Java or Kotlin. Be prepared to discuss and demonstrate your understanding of coroutines, sealed classes, and ViewModel architecture. Practice coding problems that involve manipulating lists, handling asynchronous tasks, and implementing common design patterns. This will not only help you in the coding test but also in the technical interview where practical application of these concepts will be assessed.

Prepare for Glider Test Challenges

Caspex utilizes a unique online assessment tool, Glider, which monitors your coding process closely. Familiarize yourself with the platform and its requirements. Practice coding under timed conditions without external references to simulate the test environment. This will help you become comfortable with the restrictions and ensure you can perform well under pressure. Additionally, be aware that the test may include unexpected challenges, such as mismatched data types in test cases, so stay adaptable and think critically about the problems presented.

Emphasize Communication Skills

While technical skills are paramount, don’t underestimate the importance of communication during your interviews. Be prepared to explain your thought process clearly and concisely as you work through coding problems. The interviewers at Caspex appreciate candidates who can articulate their reasoning and approach to problem-solving. Practice explaining your code and decisions out loud, as this will help you build confidence and clarity in your communication.

Stay Positive and Resilient

Interviews can be challenging, and experiences may vary widely. Some candidates have reported difficulties with the interview process at Caspex, but maintaining a positive attitude is essential. Approach each round with resilience and a willingness to learn from any feedback you receive. Remember that every interview is an opportunity to grow, and even if things don’t go as planned, you can use the experience to improve for future opportunities.

By following these tailored tips, you can enhance your chances of success in the interview process at Caspex and position yourself as a strong candidate for the Software Engineer role. Good luck!

In this section, we’ll review the various interview questions that might be asked during a Software Engineer interview at Caspex. The interview process will focus on your coding skills, problem-solving abilities, and understanding of software development principles. Be prepared to demonstrate your knowledge of algorithms, data structures, and specific programming languages relevant to the role.

Coding and Algorithms

1. Can you explain how to implement an LRU Cache?

This question tests your understanding of caching mechanisms and data structures.

How to Answer

Discuss the concept of an LRU Cache, how it works, and the data structures you would use to implement it, such as a hash map and a doubly linked list.

Example

“An LRU Cache can be implemented using a hash map to store the key-value pairs and a doubly linked list to maintain the order of usage. When a key is accessed, I would move it to the front of the list. If the cache exceeds its capacity, I would remove the least recently used item from both the hash map and the list.”

2. How would you find the largest odd number in a string containing multiple numbers?

This question assesses your string manipulation and algorithmic skills.

How to Answer

Explain your approach to parsing the string, identifying numbers, and checking for odd values.

Example

“I would split the string by spaces to extract individual numbers, convert them to integers, and then iterate through the list to find the largest odd number by checking the modulus of each number.”

3. Describe how you would move all zeros to the end of an array while maintaining the order of other elements.

This question evaluates your problem-solving and array manipulation skills.

How to Answer

Outline a two-pointer technique or a similar approach to achieve the desired result efficiently.

Example

“I would use a two-pointer approach where one pointer iterates through the array and the other keeps track of the position to place non-zero elements. After processing the array, I would fill the remaining positions with zeros.”

4. How do you handle asynchronous operations in your code?

This question tests your understanding of concurrency and asynchronous programming.

How to Answer

Discuss the use of coroutines or other asynchronous programming techniques relevant to the language you are using.

Example

“I would use coroutines to handle asynchronous operations, ensuring that dependent tasks are executed in the correct order. For instance, I would use async and await to manage tasks that need to run concurrently while maintaining their dependencies.”

5. Can a sealed class be inherited by data classes in Kotlin?

This question checks your knowledge of Kotlin's type system and class inheritance.

How to Answer

Explain the concept of sealed classes and their intended use in Kotlin.

Example

“No, a sealed class cannot be inherited by data classes. Sealed classes are designed to restrict class hierarchies, allowing only a limited set of subclasses defined within the same file. This ensures type safety and exhaustiveness in when expressions.”

Technical Knowledge

1. How do you communicate between a service and an activity in Android?

This question assesses your understanding of Android architecture and component interaction.

How to Answer

Discuss the various methods of communication, such as Intents, Broadcast Receivers, or using ViewModels.

Example

“I would typically use Intents to start an activity from a service, passing any necessary data through extras. For more complex interactions, I might use a ViewModel to share data between the service and the activity, ensuring a clean separation of concerns.”

2. How do you handle a list of items and open a details screen after clicking on an item?

This question evaluates your UI handling and navigation skills in Android.

How to Answer

Explain your approach to setting up click listeners and managing navigation.

Example

“I would set up an OnClickListener for each item in the list. When an item is clicked, I would retrieve the relevant data and start the details activity using an Intent, passing the data as extras to display the details.”

3. How do you connect a ListView and other string data in a ViewModel?

This question tests your understanding of the MVVM architecture in Android.

How to Answer

Discuss how you would use LiveData and ViewModel to bind data to the ListView.

Example

“I would create a ViewModel that holds a LiveData list of strings. The ListView would observe this LiveData, and when the data changes, the ListView would automatically update to reflect the new data.”

4. What are coroutines, and how do you use them in your projects?

This question assesses your knowledge of Kotlin coroutines and their application.

How to Answer

Explain the concept of coroutines and how they simplify asynchronous programming.

Example

“Coroutines are a way to write asynchronous code in a sequential manner. I use them to perform background tasks without blocking the main thread, utilizing launch and async to manage concurrent operations effectively.”

5. How do you handle menus in Android applications?

This question evaluates your understanding of Android UI components.

How to Answer

Discuss the process of creating and managing menus in an Android app.

Example

“I would override the onCreateOptionsMenu method to inflate the menu resource and handle item clicks in the onOptionsItemSelected method. This allows me to create a responsive and user-friendly menu system in my application.”